Bus or car window construction



Oct. 22, 1946. J. scHUNK 2,409,710

BUS OR CAR WINDOW CONSTRUCTION Filed June 23, 1944 2 Sheets-Sheet l INVENTOR ATTORNEY oct. 22, 1946.

J. SCHUNK BUS OR CAR WINDOW CONSTRUCTION Filed June 23, 1944 2 sheets-sheet 2 lNvENToR ATTORNEY H ILHUNK zw )una/M Patented Oct. 22, 1946 BUS OR CAR. WINDOW CONSTRUCTION Joseph Schlink, Union, N. J., assigner `to The National Lock Washer` -,Company, Newark, N. J., a corporation of New "Jersey Application June 2s, 1944, serial No. 541,812

8 Claims.

The present inventio-n relates to improvements in bus or car window construction, and more particularly to an improved window sash assembly of the type adapted to be installed for raising and lowering movement in vertical sash guide post pieces at each side of the window opening.- In the case of glass breakage it is desirable that the window sash frame be such that it may be conveniently disassembled and reassembled for removal of a broken glass and installation of a new one, and it is an object of the invention to provide a frame structure in which this purpose may be more eifectively carried out. To this end it is particularly proposed to provide `interlocking means between the side straps and the ends of the top rail permitting relative swinging movement of the side straps, andfurther to provide inwardly projecting fastening lug lmeans at the lower ends of the side straps for insertion, in the ends of the bottom sash rail through inward swinging movement of the side straps, these lug means each adapted to be'secured by a single screw provided in the bottom sash rail to thus rigidly secure the side straps inV assembled relation with the top and bottom sash rails. i

A further object is to provide a sash assembly in which the side straps may be engaged with the vertical edges of the window glass byl inward l swingingY movement, as distinguished from the usual type of assembly wherein it is required that` the side strap assembly approach `edges of the glass in a parallel position. This greatly facilitates the handling of the glazing strip provided about the edge of the glass, particularly in the case of a one-piece glazing strip that is continuous around the glass.

Another object is to provide a window sash assembly wherein the bottom rail engaging fastening lug carried by the side strap provides a guide for the sash lock bolt carried in the bottom rail, and is adaptedto be secured by fastening i screw means disposed entirely at one side of the lug and the bolt. This arrangement eliminates the necessity-of punching a slot in the sash lock bolt for receiving the fastening screw, as has been the practice in the past.

A further object is to provide fastening lug means constituting a guide for the sash lock bolt, and which is so constructed that in the assembly of the side strap the lug may straddle the bolt and engage with it through swinging movement of the side strap.

It is further proposed to provide fastening lug means upon the side strap engageable in the end of the bottom sash rail through swinging movement, and wherein substantial vertical clearance is provided in the Aiit of the lug in the rail, to the end that the side strap fastening lug is prevented from becoming seized or frozen in the bottom rail after the sash has been inservice for a length of time.

A further object is to provide a window sash `assembly wherein a single screw is employed for securing each of the side straps to the top and bottom sash rails, and wherein this screw may be one of the screws for fastening the sash lock casing to the bottom rail. i

With the above and other objects in view,V an embodiment of the invention is shown in the accompanying' drawings, and this embodiment will be hereinafter more fully described with reference thereto, and the invention will be finally pointed out in the claims.

In the drawings i Fig. 1 is a fragmentaryelevation of the inner side of a window sash structure, according to an exemplary illustrated embodiment of the invention. i l l Fig. 2 is a vertical sectional view, taken along the line 2 2 of Fig. 1. i

, Fig. 3 is a vertical sectional View, taken along thelineS--BofFig 2. A y

. Fig. 4 is a fragmentary top plan view.

Fig. 5 is a horizontal sectional view, taken along the line 5-5 of Fig. l. A. i v i Fig. 6 is a horizontal sectional view, taken along theline 6 6 of Fig. 1. f

Fig. '7 is a view, partially in elevation and partially `in vertical section, of the inner side of one of the side straps', `the same being partially broken away.

Fig. 8 is a side elevation showing the glass receiving side. of the side strap.

Fig. 9 is a top planview of the side strap. Fig. lO` is a bottom plan view thereof. A

Fig. 11 is a side elevation, showing one end portion of the top sash `rail for engagementwith the side strap shown in Figs. 7 to 10.

Fig. 12 is an end view thereof. Fig. 13 is a top plan view of the top sash rail. Fig. 14 is'a bottom plan View thereof.

Fig. l5 is a detail plan view of the hook meml ber forming part of the top sash rail assembly.

sponding parts throughout the several gures of the drawings.

Referring to the drawings, the window sash, according to the illustrated exemplary embodiment of the invention, comprises generally a top rail, a bottom rail, and a pair of side straps connecting the top and bottom rails at each side, the glass panel .I 'having a glazing strip Il engaged about rits four marginal edgeswhich are engaged in channel grooves provided in the top and bottom rails and the side straps. For convenience of description there is illustrated the left-hand side strap and the left-hand end portions of the top and bottom sash rails cooperating therewith,- it being 4pointed out that the right-hand end of the sash assembly is of identical form.

The top sash rail I2 is provided in its lower side with a longitudinal channel groove I3 for receiving the upper edge of the glass and the glazing strip engaged about it, and in its upper portion, in spaced relation between the groove I3 and its upper surface, there is provided a longitudinal passage I4 of rectangular cross section. In the end of the passage I4 there is engaged a hook vmember comprising a rectangular base plate portion I5, corresponding in cross-section to the passage I4 and longitudinally engageable therein, and an upwardly inclined project- `ing hookk portion I6 at one end of less width than the base plate portion I5, and vertically bent upwardly at its end. The base plate portion is provided with a pair of holes Il into which retaining bosses I8 are pressed upwardly from the bottom wall of the passage ifi, to thus rigidly secure the hook member to the top rail. A vertical recess I9 is provided in the end surface of the top rail, of slightly' greater width than the channel groove I3 and the hook extension I6 and adapted to receive the upper Vend of the side strap, as will presently more fully appear.

The bottom sash rail comprises a pair of spaced side strips 2li- 20 between which is secured by welding or the like a sash glass receiving channel strip 2| `having its upper edge flush with the upper edges of the strips 20. A second channel strip 22 -is secured between the side strips 20 intermediate their lower edges and the base of the channel strip 2|, the space between the channel strips 2| and 22 providing a longitudinal passage through the bottom rail in which the sash lock bolt 23 is engaged, and into which the projecting fastening lug of the side Astrap is adapted to be inserted and secured, as will presently more fully appear. At the lower edges of the side strips 20--20 there are provided inwardly projecting flanges 24, engaged with the the longitudinal side grooves 25 of the rubber weather strip 26 inserted in the longitudinal pocket provided below the channel strip 22. Instead of forming the bottom rail from the several strips as shown it may be of extruded onepiece form, as-illustrated by the modied form of bottom rail strip 20a in Fig. 18, or of other suitable structure to provide substantially the same cross-sectional shape. A vertical recess 2l is provided in the end of the bottom rail for receiving the lower end of the side strap, as will presently more fully appear, this recessed end being formed by extending the ends of vthe side strips 20 beyond the ends of the channel strips 2| and 22 and the anges 24,

The sash lock bolt 23 is operatively connected to a suitable sash lock actuating assembly carried by the'bottom rail, being usually projected like.

by a spring and retracted by a manual retracting lever. This sash lock assembly includes a casing 28 secured upon the inner side of the rail by means of screws 23. In the case of a bottom rail structure having a sash lock casing relatively close to the end of the rail one of the sash lock screws 29 may be utilized for securing the side strap, according to the present invention, and for this reason the sash lock casing 28 is illustrated. The rest of the sash lock assembly is not illustrated, however, as this does not constitute a part of the present invention. In the case of a bottom rail structure having the sash lock casing substantially removed from the end of the bottom rail, the sash lock screw is not utilized for securing the side strap but an additional screw is provided at the proper distance from the end oi the rail for this purpose.

The side strap comprises a channel strip 30 adapted to receive the vertical edge of the glass and the glazing strip enclosing it, its vertical side walls being bent outwardly and rearwardli7 at their forward edges to provide flanges 3I-3I, to engage the forward vertical sides of the facing strip -32 engaged about the channel strip. This facing strip is of U-shape in cross-section, and is -formed of suitable sealing material, such as felt, being cemented or otherwise suitably secured about the channel strip. At the upper end of the side strap and in lateral line with the top rail, the flanges 3| are cut away, as at 33, so that the upper end of the channel strip 30 is engageable in the end recess I9 of the top rail, with the upper ends of the flanges 3| abutting the under surface of the top rail at each side.

Across the upper end of the channel strip 3E) there is provided a horizontal bridge piece 34 forwardly spaced from the base of the strip and preferably formed by upwardly projecting extensions at each side of the strip bent inwardly at right angles into superimposed engagement, and rigidly secured together by welding or the This bridge piece provides a slot 35 in the upper end of the side strap channel strip into which the vertical end portion of the hook I6 is engaged to connect the upper end of the side strap to the top rail. The horizontal disposition o'f the bridge piece over the upwardly inclined projection of the hook provides an inwardly divergent clearance space beneath the bridge piece, permitting swinging movement of the side strap into and out of engagement with the bottom rail, while retaining the upper end of the side strap against outward displacement relative to the top rail.

At the lower end of the side strap in lateral line with the bottom rail the outwardly and rearwardly bent flanges 3| of the channel strip side walls are compressed tightly against the side walls7 as at 3S, these compressed flange portions being of suitable thickness to be slidably engaged within the end recess 2l of the bottom rail. The lower end of the channel strip is cut out at each side, as at 3l, to accommodate the end of the bottom rail weather strip 26 which, in the assembled relation of the side strap, extends beyond the end of the bottom rail and into contact with the vertical bottom wall of the channel strip 30.

In substantially axial alignment with the sash 'lock bolt 23 of the bottom rail the side strap vchannel strip 30 is provided with an inwardly projecting attaching lug member 38, its portion projecting beyond the inner edges of lthe channel strip being of inverted U-shape in cross-section, while rits portion 39 within the channel strip is 1 engaged. i

5 of rectangular tubular form. The upper and lower walls of the tubular portion 39 are provided with lug extensions and '4| engaged through a rectangular slot 42 in the vertical base wall of thechannel strip, and bent above and below the slot into contact with the outer surface of the base wall where they are rigidly secured by welding or the like. In axial line with the opening 42 and the passage through the tubular portion 39 of the lug member the facing strip 32 is provided with a rectangular passage 43, thesash lock bolt being slidably engaged in these passages and normally projected frornthe pass'age43 of the facing strip 32 for engagement with the rack strip of the sash guide post piece with which the side strap of the window sash assembly isnormally The side walls of the lug 38 are provided with outwardlypressed bosses 44, adapted to impart rigidity to these side walls, as well asto provide space fillers in the engaged relation of the lug with the bottom rail. One of these bosses 44, at the inner side of the lug and adjacent its projected end, is provided with an aperture in which is engaged the interiorly threaded stud portion 46 of a nut 41 secured to the lug by swedging over the inner end of the stud portion 46, as at 58. In the assembled relation of the side strap this nut is in register with a screw'hole 49 in the inner side wall of the bottom rail and in contact with the inner surface of the side wall, in which relation it is engageable by the screw 29 for the purpose Vof securing the position of the side strap. As showningFigs. 1 and 2 this screw 29 may also secure the sash lock casing 28 to the bottom rail. It will be understood, however, that inthe case of the sash lock being differently located the screw 29 will be shorter'than theI one illustrated, and directly engaged in the hole 49 of the rail. rThe inverted U`shape lug 38 has a vertical di-` "mension suilicient to clear the upper surface of the sash lock bolt, as well as the under surface of the glass receiving channel strip 2 of the bottom rail and the bottom ofthe groove of the channel strip 22. strip 22 is of corresponding width to the lower marginal portion of the lug 38 so that in the assembled relation o f the side strap the lug is slidably engaged in this groove.

In assembling the side strap the slot 35 at itsupper end is engaged by the hook I6 of the top rail, the top and bottom rails having iirst been engaged with the upper and lower edges of the glass, and the projecting lug 38 is engaged over the projecting sash lock bolt` of the ybottom rail; the inverted U-shaped cross-section of, thelug permitting such engagement with the `bolt in an outwardly swung position 'of the side strap. Thereupon the side strap is pressed into place, swinging about the hook i6 as a pivot, the lug 33 being guided inthe groove of the bottom rail channel strip 22. and the sash lock bolt entering the tubular'portion 39 of the lug and projecting through the guide openings 42 and 43 as the side strap is brought into its vertical position, whereupon it is secured by the screw 29.

As shown clearly in Fig. 2, there is substantial clearance between the upper closed end of the lug 38 and the under surface of the glass receiving channel strip 2|, and between its lower open end engaged in the groove of the channel strip 22 and the base of this groove, this arrangement permitting the swinging into and out of position of the side strap, as well as preventing any possibility of seizing or freezing of the lug in the This groove of the channel" 6 `bottom rail, and such as might occur in the case of a tightly fitting lug engaged with the bottom rail through parallel movementof the side strap, asl distinguished from the swinging movement of 5 the present invention. `'Iheswinging movement of the side strap also facilitates engagement with and disengagement from the glazing strip enclosed vertical edge of the glass, greatly reducing the frictional resistance usually encountered in the case of parallel engaging and disengaging movement ofthe side strap.`

I have illustrated and described preferred and satisfactory embodiment of the invention, but it will be `understood that changes may be made therein, within the spirit and scope thereof, as dened in the appended claims.

Having thus described my invention, what I claim and desire to secure by letters Patent is: 1. In a window sash assembly, a top rail having a sash glass receiving channel in its under side, a bottom rail having a sash glass receiving channel in its upperside, apair of side straps having sash glass receiving channels in their inner sides, a rectangular sash glass engaged at its four marginal edges in said channels of said top and bottom rails and said side straps`,'vertically engageable interlocking hook and slot connection means cooperating between the'ends of one of said rails and the adjacent ends of said side straps permitting relative inward and Outward swinging movement of said side straps relatively to the ends 0f the other of said rails, and laterally engageable lug and passage connection means cooperating between said other of said rails and the adjacent ends of said side straps engageable and disengageable through said inward and outward swinging movement of said side straps.

2. In a window sash assembly, a top rail having a sash glass receiving channel in its under side, a bottom rail having a sash glass receiving channel in its upper side, a pair of side straps having sash glass receiving channels in their inner sides, a rectangular sash glass engaged at its four marginal edgesin said chnnels of said top and bottom 45 rails and said side straps, interlocking connection means between the ends of said top rail and the upper ends of said side straps comprising a hook extension secured to each end of said top rail, and hook engaging means at the upper end `50 of each of said side straps engageable by said hook extension, said connection means permitting relative inward and outward swinging movement `of said side straps relatively to the ends of said bottom rail, and cooperating connection means carried by said bottom rail and the-lower ends of said side straps engageable and Vdisengageable through said inward and outward swinging movementoi said side straps. i

3. In a window sash assembly, a top rail having en a sash glass receiving channel inits under side,

a bottom rail having a sash glass receiving channel in its upper side, a pair of side straps having sash glass receiving channels in their inner sides,

a rectangular sash glass engaged at its four marginal edges in said channels of said top and bottom rails and said side straps, interlocking connection means between the ends of said top rail and the upper ends of said side straps comprising an upwardly inclined hook extension secured to each end of said top rail having a vertically disposed hook end, and hook engaging means at the upper end of each of said side straps including a horizontal bridge piece engageable over said inclined hook extension, and a slot engageable by said hook end, said connection means permitting v.relative inward and outward swinging movement of saidY side straps relatively to the ends of said bottom rail, and cooperaing connection means in `said bottom rail and the lower ends of said side straps engageable and disengageable through inwardand' outward swinging movement of said side straps,

4. In a Window sash assembly, a top rail having a sash glass receiving channel in its under side and a longitudinally disposedpassage open at its ends, a bottom rail having a sash glass receiving channel in its upper side, a pair of side straps fhaving sash glass' receiving channels in theirl inner sides, a rectangular sash glass engaged at itsfour marginal edges in said channels of said top and bottom rails and said side straps, interlocking connection means between the ends of said toprail andthe upper ends of said side straps comprising a hook extension member engaged and secured in said top rail passage at each end, and hook engaging means at the upper end of each of said side straps engageable by said hook extension, said connection means permitting relative inward and outward swinging movement of said side straps relatively to the ends of said bottom rail, and cooperating connection means in said bottom rail and the lower ends of said side straps engageable and disengageable through said inward and outward swinging movement of said side straps.

5. In a window sash assembly, a t-op rail having a sash glass receiving channel in its under side, a bottom rail having a sash glass receiving chanu nel in its upper side and longitudinal passage means, open at each end of said bottom rail and having sash lock bolts engaged therein at each end for projecting and retracting movement, a pair of side straps having sash glass receiving channels in their inner sides, a rectangular sash glass engaged at its four marginal edges in said channels of said top and bottom rails and said side straps, interlocking connection meansl between the ends of said top rail and the upper ends of said side straps-permitting relative inward and outward swinging movement of said side straps relatively to the ends of said bottom rail, and inwardly projecting bolt embracing lug means respectively carried by the lower ends of said side straps engageable and disengageable with respect to said passage means in the ends of said bottom rail'through said inward and outward swinging movement of said side straps, each of said lug means being of inverted U-shape in cross-section and engageable over said sash lock bolt.

6. In a window sashassembly, a top rail having a sash glass receiving channel in its under side, a bottom rail having a sash glass receiving channel in its upper side and longitudinal passage means-,open at each end"of said bottom rail and having sash lock bolts engaged therein at each end for projecting and retracting movement, a pai),` of side straps having sash glass lreceiving channels intheir inner sides, a rectangular sash 8 glass engaged at its four marginal edges in said channels of said top and bottom rails and said side straps, interlocking connection means between the ends of said top rail and the upper ends of said side straps permitting relative inward and outward swinging movement cf said side straps relatively to the ends of said bottom rail, and inwardly projecting bolt embracing lug means respectively carried by the lower ends of said side straps engageable and disengageable with respect `to said passage means in the ends of said bottom rail through said inward and outward swinging movement of said side straps, each of said lug means including a projecting portion of inverted U-shape in cross-section engageable over said sash lock `bolt and a tubular portion within said side strap constituting a guide passage for said bolt.

7. In a window sash assembly, a top rail having a sash glass receiving channel in its under side, a'bottom rail having a sash glass receiving channel in its 'upper side and longitudinal passage means, open at each end of said bottom rail and having sash lock bolts engaged therein at each end Vfor projecting and retracting movement, a pair of side straps having sash glass receiving channels in their inner sides, a rectangular sash glass engaged at its four marginal edges in said channels of said top and bottom rails and said side straps, interlocking connection means between the ends of said top rail and the upper ends of said side straps permitting relative inward and outward `swinging movement of said side straps relatively to the ends of said bottom rail, and inwardly projecting bolt embracing lug means respectively carried by the lower ends of said side stra-ps engageable and disengageable with respect to said passage means in the ends of said bottom rail through said inward and outward swinging movement of said side straps, each of said lug means being of inverted U-shape in crosssection and engageable over said .sash lock bolt and having a screw receiving hole in one side, and a fastening screw carried by said bottom rail engageable with said screw receiving hole and disposed entirely at one side of said bolt.

8. In a window sash assembly, a top rail having a sash glass receiving channel in its under side, a bottom rail having a sash glass receiving channel in its upper side, a side strap having a sash glass receiving channel in its inner side, a vertically engageable interlocking hook and slot connection-means cooperating between an end of said top rail and the upper end of said side strap permitting inward and outward swinging movement of said side strap relatively to an end of said bottom rail, and laterally engageable lug and passage connection means cooperating between said bottom rail and the lower end of said side strap engageable and disengageable through inward and outward swinging movement of said side strap.

JOSEPH SCHUNK. 

